BTW, how would you propose to preserve some bit of privacy for military members living in communal conditions? Please reconcile with current polices segregating male and female quarters, showers, etc. Also, note the article provides no information concerning maintenance of discipline. Either the example countries noted don't have particularly "expeditionary" armed forces (i.e. they don't deploy and live in tents/barracks/ships to the extent we do), they accept exposing their soldiers to very uncomfortable or worse conditions or they have some pretty strict polices to keep order.
I'd bet a pile of money that there have been serious but unpublicized problems. The only question is to what extent. Imagine how much worse the heterosexual discipline troubles you allude to would be without the ability to readily segregate men and women.
The current "don't ask/don't tell" policy works. It provides a ceiling to limit disruptive behavior while allowing homosexuals to serve.
The whole privacy issue is a big one. You’re right insofar as other countries not being involved in combat situations to the extent that we are. The idea of women in certain situations—on submarines for example, is disconcerting if the issue is privacy.